2013 Latest Version; More Stubborn Case, More Rich and Enhanced Features * Frequency Range: 136-174/400-480MHz; 25KHz/12.5KHz Switchable * 128 Channels 50 CTCSS and 104 CDCSS; Channel Step: 2.5/5/6.25/10/12.5/25KHz * Dual-Band Display, Dual Frequency Display, Dual-Standby; A/B band independent operation